Home / 787,863.11-1,181,695.64-219,286.85

Finding the Fourth Proportional to 787,863.11, 1,181,695.64 and 219,286.85

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Solution

The fourth proportional to 787,863.11, 1,181,695.64 and 219,286.85 is: 328,902.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,863.11 : 1,181,695.64 = 219,286.85 : x
  2. Step 2: Convert to fraction form
    787,863.11/1,181,695.64 = 219,286.85/x
  3. Step 3: Cross multiply
    787,863.11x = 1,181,695.64 × 219,286.85
  4. Step 4: Simplify right side
    787,863.11x = 259,130,307,549.42
  5. Step 5: Solve for x
    x = 259,130,307,549.42/787,863.11
  6. Step 6: Final answer
    x = 328,902.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.